OK - If you're going to keep the chickens cooped :~D You might need two layers of fencing with a demilitarized zone in the middle so he can't run the perimeter and keep them in a constant state of being freaked out.
Did Ginger have some kind of issue that cropped up that made her incompatible? I don't remember you saying.
Ginger was a chicken killer... Vader had severe dysplasia and had to be put down...